Stair-climbing chair



FIG. 1 is a front view of a stair-climbing chair showing our new design in a closed position;

FIG. 2 is a rear view thereof;

FIG. 3 is a right side view thereof, the left side being a mirror image;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a perspective view thereof;

FIG. 7 is a front view thereof, in an opened position;

FIG. 8 is a right side view thereof, the left side being a mirror image;

FIG. 9 is a top plan view thereof;

FIG. 10 is an enlarged perspective view thereof; and,

FIG. 11 is a perspective view identical to FIG. 10, but with the chair illustrated within its environment of intended use;

The broken line showings of FIGS. 1–11 are environmental only and form no part of the claimed design. 

The ornamental design for a stair-climbing chair, as shown and described. 